AVIXA Recognized AV Technologist Practice Test

The two main types of audio signal transmission are categorized as analog and digital. Analog transmission refers to the continuous electrical signals that represent sound waves, which can vary in amplitude and frequency. This method has been the traditional way of transmitting audio since the early days of sound recording and amplification.

On the other hand, digital transmission involves encoding audio signals into a digital format, where sound is represented as discrete values. This method has gained popularity due to its ability to transmit audio with higher fidelity, reduced noise, and the capability of being processed by various digital devices without significant loss of quality.

Understanding these two types is essential because they encompass the fundamental ways audio is captured, processed, and distributed in various media, which is vital for professionals in the AV industry to know in order to make informed decisions about audio systems and technology.